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valkas [14]
3 years ago
14

The radius of a sphere X is 3 inches, and radius of sphere Y is 9 inches. How many

Mathematics
1 answer:
kirza4 [7]3 years ago
7 0

The volume of the sphere Y is 27 times the volume of the sphere X

Step-by-step explanation:

Sphere X:

Radius of sphere X = 3 inches

Volume = (4/3) π(27)

Sphere Y:

Radius of sphere Y = 9 inches

Volume = (4/3) π(729)

Volume of sphere Y /volume of sphere X = (4/3) π(729) /(4/3) π(27)

= (729) /(27)

= 27

The volume of the sphere Y is 27 times the volume of the sphere X

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5 0
4 years ago
If<br>find the values of x and y.​
uysha [10]
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8 0
3 years ago
Un hotel tiene 120 habitaciones, entre dobles i individuales. Si la cuantidad de camas son de 195, cuantas habitaciones dobles h
Kamila [148]

Answer:

45 individuales y 75 dobles.

Step-by-step explanation:

Para saber esto, debemos plantearlo por medio de un sistema de ecuaciones. En este caso las incógnitas serían el tipo de habitación, es decir, una será la habitación doble, y la otra la individual.

X: habitaciones individuales

Y: habitaciones dobles

Sabiendo eso, sabemos que sumando ambos tipos de habitaciones, dan el total de 120, por tanto, la primera ecuación será:

x + y = 120  (1)

Para la segunda ecuación, sabemos que hay 195 camas en total, que deben distribuirse en los dos tipos de habitaciones, en una habitación doble van 2 camas, mientras que en una individual va 1, por tanto:

x + 2y = 195   (2)

Ahora que tenemos las dos ecuaciones, solo resta resolverlo por alguno de los métodos conocidos de sistema de ecuaciones. En este caso, como las ecuaciones son sencillas podemos usar el método de reducción.

En la siguiente foto, está el procedimiento.

Suerte

3 0
3 years ago
Sarah picked up food for her and her friends. She bought 3 baskets of fries at $3.50 each and 4 hamburgers at $3.00 each. What e
victus00 [196]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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8 0
3 years ago
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